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Finding the Fourth Proportional to 101,056.76, 151,387.74 and 74,354.12

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Solution

The fourth proportional to 101,056.76, 151,387.74 and 74,354.12 is: 111,385.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,056.76 : 151,387.74 = 74,354.12 : x
  2. Step 2: Convert to fraction form
    101,056.76/151,387.74 = 74,354.12/x
  3. Step 3: Cross multiply
    101,056.76x = 151,387.74 × 74,354.12
  4. Step 4: Simplify right side
    101,056.76x = 11,256,302,186.49
  5. Step 5: Solve for x
    x = 11,256,302,186.49/101,056.76
  6. Step 6: Final answer
    x = 111,385.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.